Color

#0570b3

#0570b3
hex#0570b3
rgbrgb(5, 112, 179)
hslhsl(203, 95%, 36%)
oklchoklch(0.528 0.134 245.9)
Closest name: Brilliant Blue (#0075b3)Relative luminance 0.1488

Tints & shades

Every swatch is its own page — click any to analyze it.

Harmonies

Complementary

Open in tool →

#b34705

#05b39f · #0519b3

#b30570 · #70b305

Split-complementary

Open in tool →

#b30519 · #b39f05

#9f05b3 · #b34705 · #19b305

Contrast

#0570b3 as textRatioAAAA largeAAAFix
Aaon white
5.28:1passpassfail
  • AAA: use #045a90 as the text (7.32:1)
Aaon black
3.98:1failpassfail
  • AA: use #0579c2 as the text (4.52:1)
  • AAA: use #069cf9 as the text (7.13:1)
  • AA: or shift the background to #ededed (4.51:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #0570b3 as the background.

Brands using this color

Fonts for this mood

#0570b3 reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #0570b3
live endpoint

Point any MCP client at the shared colors endpoint and your agent gets the same engine as this page — generate_palette, check_contrast, analyze_color — read-only, no key. Every palette it proposes comes with a /palettes/new/… link: open it, lock what you like, paste the link back.

endpointhttps://mcp.brandsweets.com/colors/mcp
claude mcp add --transport http brandsweets-colors https://mcp.brandsweets.com/colors/mcp
try this prompt

analyze #0570b3 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/0570b3-9cb0c4-df4e5d-1f222d-e9f1f0?lock=0&style=vibrant

Want the agent to remember your picks and write them into a living brand? Create a free BrandSweets workspace.

Machine-readable: color.md